A few weeks ago one of the biggest beauty bloggers in the world, Huda Kattan, was in London. And when Lisa Eldridge, one of the most well-known makeup artist/vloggers in the world, found out about Kattan's visit, she asked her to come to her studio so she could do one of her famous YouTube makeup re-creations on her. The result was a stunning tutorial that turned Kattan into a modern-day Sophia Loren.

Eldridge is also the author of a book called Face Paint: The Story of Makeup, in which she chronicles the history of makeup. So when she decides to re-create an iconic '60s look like Loren's, you can bet she knows her stuff. The first tidbit of information Eldridge shares in the video is that Loren usually did her own makeup. "She started [doing her own makeup] in the '50s when she was doing the movies," says Eldridge. "She said she learned a lot from [on-set makeup artists] and she took all the advice she could."

To create Loren's signature smoky eyes, Eldridge relies heavily on the brand-new Lancôme Grandiose Liner (she is an ambassador for the makeup company), smudging the liner into the roots of Kattan's upper lashes. When it comes to achieving Loren's lashes, Kattan breaks out her favorite shape of her own false lashes, the Huda Beauty Lashes in Farah. But when Kattan is about to apply them, Eldridge stops her and says that Loren didn't apply false lashes the normal way. "Rather than glue them right down to the outer corner, she lifted them from the middle and out, so they were a little bit above the lashes and slightly elongated," says Eldridge. So when Kattan applies the lashes, instead of having the strip land right on top of her lash line, she lets the end of the strip fall significantly above it, landing higher up on the eyelid. "That was her trick to give her that big-eye look," says Eldridge. See how Kattan applies the lashes going slightly up at the end?

Even Kattan learned something new with this lash application. The rest of Eldridge and Kattan's tutorial is just as fascinating. Check it out below: